Citric Acid (C6H8O7) (food grade) (99.5%~101.0%),China SHILIOU price supplier

Name: Citric Acid

Chemical name: 3 - hydroxyl - 3 - carboxyl e malonic acid

English name so - 1, 2, 3 - propanetricarboxylic hydroxy acid. -

J: 77 - CAS aubject 92-9

Formula: C6H8O7

Molecular weight: 192.14

Appearance and properties: White crytallized powder, odourless.

Melting point (degree celsius): 153

The boiling point (degree celsius): (decomposition)

The relative density (water = 1): 1.6650

Floc point (degree celsius): 100

Ignition temperature (degree celsius): 1010 (powder)

Explosion limit % (V/V): 8.0 (65 degree celsius)

Dissociation constants (25): Degree celsius Ka1 = 7.4 x 10 ^ - 4, Ka2 = 1.7 x 10 ^ - 5, 10 ^ Ka3 = 4.0 x - 7

Solubility: Soluble in water, alcohol, acetone, insoluble in ether, benzene, slightly soluble in citric acid

Chloroform. Aqueous show acidic.

Physical properties: At room temperature, citric acid colorless translucent crystals or white particles or white crystalloid powder, odourless, Flavour is extremely acid, in damp air tiny have ChaoXie sex. It can with no hydrate or a hydrate form existence: Citric acid from hot water, without hydrate formation crystallization, In cold water crystallization is generated a hydrate. 78 degree celsius when heated to a hydrate will hydrate. Without the decomposed In 15 degrees centigrade, citric acid can also be dissolved in anhydrous alcohol.

Citric acid crystal morphology for crystal condition different and different, citric acid C6H8O7 without water containing gesso citric acid, also have 2C6H8O7. H2O, C6H8O7. C6H8O7.2H2O or H2O.

Chemical properties: From the structure speak citrate is a Krebs compounds, and therefore with other carboxylic acid has similar physical and chemical properties. 175 degree celsius heat until it can decompose produce carbon dioxide and water, the remaining some white crystals. Sodium citrate is a kind of strong acid, there are 3 H + can ionization, Heat can be decomposed into a variety of products, with acid, alkali, glycerol and other happening reaction.